Audioengine D1 24-bit Digital-to-Analog Converter - This high-quality portable computer amplifier allows you to bypass low quality soundcard or headphone output and send audio through USB or optical. The D1 accepts inputs from both USB and optical and has outputs for any audio system or headphones.$169

b&o play 'earset 3i' in-ear headphones - Ultra-light and adjustable headphone designed for people on the move. Tuned by bang & olufsen' s acoustics Department with a high Signal-to-noise ratio that delivers your music crisp and clear. Made from brushed aluminum and soft-touch rubber coating$174

Jawbone Mini Jambox Wireless Bluetooth Speaker - Measuring in at 1.5 inches thin and a featherweight 9oz, MINI JAMBOX is built from a single piece of extruded aluminum to deliver incredible 3 dimensional sound and volume for its size. It also comes in 9 colors and 5 different design options.$77

Sony SRS-XB41 Portable Wireless Bluetooth Speaker - Feel the power of extra bass with live sound mode for an immersive 3D sound experience. Waterproof and Dustproof IP67 design for worry-free usage. Listen all day and night with up to 24 hours of battery life.$148